#3478B3#3478B3

#3478B3 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.7% C 0.115 H 247.8°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3478B3
RGB	rgb(52, 120, 179)
HSL	hsl(208, 55%, 45%)
HSV	hsv(208, 71%, 70%)
CMYK	cmyk(70.9%, 33%, 0%, 29.8%)
CIE-LAB	lab(48.78, -1.62, -37.44)
CIE-LCH	lch(48.78, 37.48, 267.52°)
OKLab	oklab(55.69% -0.0433 -0.1061)
OKLCH	oklch(55.69% 0.115 247.8)
XYZ	xyz(16.2663, 17.4159, 45.1434)
Luminance	0.1742 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3478B3 #B36F34

analogous

#34B3AE #3478B3 #3439B3

triadic

#3478B3 #B33478 #78B334

tetradic

#3478B3 #AE34B3 #B36F34 #39B334

square

#3478B3 #AE34B3 #B36F34 #39B334

split-complementary

#3478B3 #B33439 #B3AE34

monochromatic

#183854 #265884 #3478B3 #5696CE #86B4DC

Accessibility & contrast

On white

4.68

#3478B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#3478B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3478B3

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3478B3	#FFFFFF	#000000	##FFFFFF
##3478B3	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7AB6

Deuteranopia (green-blind)

#4C6EB2

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3478b3;
/* rgb */ color: rgb(52, 120, 179);
/* oklch */ color: oklch(55.7% 0.115 247.8);

Tailwind

colors: {
  custom: {
    50: '#7b9eca',
    500: '#3478b3',
    950: '#000000',
  },
}

SCSS

$custom: #3478b3;
$custom-light: #7b9eca;
$custom-dark: #000000;

JSON

{
  "hex": "#3478b3",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 179
  },
  "hsl": {
    "h": 207.874,
    "s": 54.978,
    "l": 45.294
  },
  "oklch": {
    "l": 0.55695,
    "c": 0.11464,
    "h": 247.8
  },
  "luminance": 0.17418
}

Semantic roles & 50–950 ramp

primary

#3478B3

secondary

#C59F7D

accent

#8F49DE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3478B3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →